Abstract
So far, energetics studies related to climate change have focused on the disturbed and undisturbed kinetic and potential energies, as well as their transformations, without dealing with the energetics involved in the phenomena of different spatial scales. Thus, the present work reports the first analysis of the spectral energetics for a condition of climate change, followed by the high-range emission scenario, RCP8.5, which originated from the new Max Planck Institute Earth System Model (MPI-ESM). The results showed that both types of generation (Go and Gn), baroclinic processes (Co and Cn), kinetic energies (Ko and Kn) and the barotropic process, Mn, significantly increase in the condition of a warming climate. Moreover, the results still reveal that in the most components of the energetics, is the planetary scale waves that are the most impacted under a climate change scenario. These results highlight that global warming can have different impacts on particular types of motions.
Highlights
Quantifying the atmospheric energetics is a key element in understanding the dynamical behavior of the environment in a broad range of spatial and temporal scales of motion
The present work reports the first analysis of the spectral energetics for a condition of climate change, followed by the high-range emission scenario, RCP8.5, which originated from the new Max Planck Institute Earth System Model (MPIESM)
We present a spectral global energetic preliminary analysis from a set of two experiments that originated from the coupled atmosphere-ocean ECHAM/MPIESM-MR general circulation model: a control experiment (L20C) and one based on the RCP8.5 scenario (L21C)
Summary
Quantifying the atmospheric energetics is a key element in understanding the dynamical behavior of the environment in a broad range of spatial and temporal scales of motion. This knowledge is achieved through the calculation of the potential (energy related to gravity and altitude) and kinetic (energy related to motions) energies, as well as their generation (energy source), transformation and dissipation (energy sink) processes. Since the potential and kinetic energies can be divided into zonal, stationary and transient-related motions, the energetics of a particular type of atmospheric motion can be assessed [1] [2].
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